Method for efficiency-driven operation of dispatchable sources and storage units in energy systems
AssigneeNEC Laboratories America, Inc.
InventorsBabak Asghari, Ratnesh K. Sharma, Ali Hooshmand
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Abstract
The invention is directed to a method or management system which 1) dispatches high efficiency generators first, 2) charges/discharges energy storage units in a way to enhance efficiency of generators in the system or avoid the necessity of dispatching generators during their low efficiency operations at all. In this way the method or management system utilizes its knowledge about the efficiency characteristics of generators in the system and its ability to change the net demand seen by the generators through charge and discharge of energy storage units to increase the overall efficiency of the energy system.
Claims18
A method for managing an efficiency-driven operation of dispatchable generator sources and storage units in energy systems, comprising:
- selecting an efficient combination of available energy resources in an energy system to supply a current load level;
- assessing a storage unit's state of charge of a storage unit, availability for charge or discharge operation and efficiency;
- sending dispatch commands to generators and keeping the storage unit idle if charging or discharging the storage unit does not increase an overall efficiency of generation in the energy system;
- calculating charge or discharge of the storage unit and dispatching levels to maximize efficiency of the storage unit if charging or discharging the storage unit increases an overall efficiency of generation in the energy system;
- and
- sending dispatch commands to the generators and charge or discharge commands to the storage unit for efficiency-driven operation of dispatchable generators and storage units in the energy system.
A management system for an energy system for managing an efficiency-driven operation of dispatchable generator sources and storage units in energy systems, the management system comprising a computer system configured for carrying out the following steps:
- selecting an efficient combination of available energy resources in an energy system to supply a current load level;
- assessing a storage unit's state of charge of a storage unit, availability for charge or discharge operation and efficiency;
- sending dispatch commands to generators and keeping the storage unit idle if charging or discharging the storage unit does not increase an overall efficiency of generation in the energy system;
- calculating charge or discharge of the storage unit and dispatching levels to maximize efficiency of the storage unit if charging or discharging the storage unit increases an overall efficiency of generation in the energy system;
- and
- sending dispatch commands to the generators and charge or discharge commands to the storage unit for efficiency-driven operation of dispatchable generators and storage units in the energy system.
Dependencies are inferred from the claim text.